Innovation studies have long been confined to the theoretical system established by the scholars of developed countries in the West. It is difficult to use these studies to understand the real nature and law of technological innovation in developing countries. This book, in an innovative manner, studies the theoretical system of secondary innovation, and reveals the evolution law and dynamic innovation mode of the activities carried out by technologically backward countries. It does so by laying an important foundation for the development of management science theory on the basis of the standpoint and characteristics of developing countries.